In a recent paper published in the Proceedings of the National Academy of Sciences, a team led by Guoliang Liu, associate professor of chemistry in the College of Science, proposed a new method for polystyrene recycling. By exposing the material to ultraviolet light and adding a chemical catalyst, a product called diphenylmethane (DPM) is generated, which can be used as a fragrance in drug development and consumer products.
The market price of DPM is 10 times that of other materials that can be made from recycled polystyrene, which can fully cover the cost of collecting and recycling waste foam, which can greatly promote the progress of polystyrene recycling. In addition, waste foam can also be compacted and granulated into recycled PS particles, which can be applied to a variety of environmentally friendly products to realize the cycle of polystyrene recycling.
The foam blocks compacted by the polystyrene densifier can be traded and cashed, becoming an investment with stable returns for enterprises, with environmental and economic benefits. GREENMAX's Polystyrene densifier compacts loose foam into compact foam blocks, which not only increases transportation efficiency by 90 times, but also enables companies to make considerable profits from the sale of foam ingots.